3340440409 has 2 divisors, whose sum is σ = 3340440410. Its totient is φ = 3340440408.

The previous prime is 3340440391. The next prime is 3340440413. The reversal of 3340440409 is 9040440433.

3340440409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1701810009 + 1638630400 = 41253^2 + 40480^2 .

It is a cyclic number.

It is not a de Polignac number, because 3340440409 - 2⁹ = 3340439897 is a prime.

It is a super-3 number, since 3×3340440409³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (3340446409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1670220204 + 1670220205.

It is an arithmetic number, because the mean of its divisors is an integer number (1670220205).

Almost surely, 2^3340440409 is an apocalyptic number.

It is an amenable number.

3340440409 is a deficient number, since it is larger than the sum of its proper divisors (1).

3340440409 is an equidigital number, since it uses as much as digits as its factorization.

3340440409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 3340440409 is about 57796.5432270824. The cubic root of 3340440409 is about 1494.8624846387.

The spelling of 3340440409 in words is "three billion, three hundred forty million, four hundred forty thousand, four hundred nine".